4-Amino-2-Nitrophenol → HCID 178467275, compound

HRID 2398762Notes

Reaction equation

HRID 2398762 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[C:4]([N+:9]([O-:11])=[O:10])[CH:3]=1.[C:12]([C:15]1[C:16](=[O:26])[O:17][C:18]([OH:25])=[C:19]([C:22](=O)[CH3:23])[C:20]=1[OH:21])(=[O:14])[CH3:13]>CO>[C:12]([C:15]1[C:16](=[O:26])[O:17][C:18](=[O:25])[C:19](=[C:22]([NH:1][C:2]2[CH:7]=[CH:6][C:5]([OH:8])=[C:4]([N+:9]([O-:11])=[O:10])[CH:3]=2)[CH3:23])[C:20]=1[OH:21])(=[O:14])[CH3:13]

Participants

4

Reactant 2

HCID 34174194-Amino-2-NitrophenolHCID 1354659693,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-one

Product 1

HCID 178467275HCID 178467275, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

Following the procedure of Example 1, 3 g. (0.0195 mol) of 4-amino-2-nitrophenol is added to a refluxing solution of 4.1 g. (0.0195 mol) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in methanol and the mixture is refluxed for about two hours. Filtration of the reaction mixture yields 5-acetyl-4-hydroxy-3-[1-(3-nitro-4-hydroxyphenylamino)ethylidene]-2H-pyran-2,6(3H)-dione, m.p. 236°-237° C. (dec.).

Workup

  1. filtrationFiltration of the reaction mixture

Sources & evidence

ORD record
ord-2f7f932dbd554e4a91d998e257140795
Source dataset
uspto-grants-1977_05
Patent number
US04025642

Reaction notes

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